Canister



FIG. 1 is a perspective view of the canister in the extended position;

FIG. 2 is a perspective view of the canister in the closed position; and

FIG. 3 is a perspective view of the connector in FIG. 1 with the upper and lower canister removed for ease of illustration; and,

FIG. 4 is a side view thereof. 

The ornamental design for a canister, as shown and described. 